vue3 ref store 使用数据需要获取value

1，如果定义 let data=ref(‘’)
console.log(data.value)

2, vuex中的数据最好获取且

setup(props, ctx) {
    let store = useStore();
    let list = computed(() => {
      return store.state.list;
    });
    let add = (val) => {
      let flag = true;
      list.value.map((item) => {  //注意这里就是从vuex里拿来的数据也是需要.value获取内容
        if (item.title === val) {
          flag = false;
          alert("任务已存在");
        }
      });
      if (flag) {
        store.commit("addTodo", {
          title: val,
          complete: false,
        });
      }
    };
    let del = (index) => {
      store.commit("delTodo", index);
    };
    return {
      list,
      add,
      del,
    };
  },

vue3 main.js

import { createApp } from 'vue'
import './style.css'
import 'element-plus/dist/index.css'
import App from './App.vue'
import router from './router'
import store from './store'
import request from './utils/request'
import storage from './utils/storage'
import ElementPlus from 'element-plus'
import api from './api'


const app = createApp(App)
app.config.globalProperties.$request = request
app.config.globalProperties.$storage = storage
app.config.globalProperties.$api = api //请求接口挂载到全局

app.use(store).use(router).use(ElementPlus).mount('#app')

语法糖setup写法

import { reactive, ref, getCurrentInstance } from "vue";
import type { FormInstance, FormRules } from "element-plus";
import { useStore } from "vuex";
import { useRouter } from "vue-router";
const { proxy, ctx } = getCurrentInstance(); //获取全局挂载的自定义变量
const router = useRouter();
const store = useStore();